<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>01-动态伪类_03-focus</title>
    <style>
        a:focus {
            /* 清空默认的轮廓 */
            outline: none;
        }
    </style>
</head>
<body>
<input type="text">

<input type="text">

<input type="text">

<a href="#" tabindex="-1">链接</a>
<a href="#" tabindex="-1">链接</a>

<input type="text">

<a href="#" tabindex="-1">链接</a>

</body>
</html>